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Finding the Fourth Proportional to 53,828,470.80, 80,742,706.20 and 53,828,470.80

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Solution

The fourth proportional to 53,828,470.80, 80,742,706.20 and 53,828,470.80 is: 80,742,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,828,470.80 : 80,742,706.20 = 53,828,470.80 : x
  2. Step 2: Convert to fraction form
    53,828,470.80/80,742,706.20 = 53,828,470.80/x
  3. Step 3: Cross multiply
    53,828,470.80x = 80,742,706.20 × 53,828,470.80
  4. Step 4: Simplify right side
    53,828,470.80x = 4,346,256,402,999,679
  5. Step 5: Solve for x
    x = 4,346,256,402,999,679/53,828,470.80
  6. Step 6: Final answer
    x = 80,742,706.20

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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.