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Finding the Fourth Proportional to 219,699,731.60, 329,549,597.40 and 168,838,470.80

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Solution

The fourth proportional to 219,699,731.60, 329,549,597.40 and 168,838,470.80 is: 253,257,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,699,731.60 : 329,549,597.40 = 168,838,470.80 : x
  2. Step 2: Convert to fraction form
    219,699,731.60/329,549,597.40 = 168,838,470.80/x
  3. Step 3: Cross multiply
    219,699,731.60x = 329,549,597.40 × 168,838,470.80
  4. Step 4: Simplify right side
    219,699,731.60x = 55,640,650,077,771,656
  5. Step 5: Solve for x
    x = 55,640,650,077,771,656/219,699,731.60
  6. Step 6: Final answer
    x = 253,257,706.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.