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Finding the Fourth Proportional to 264,441,703.60, 396,662,555.40 and 156,946,279.60

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Solution

The fourth proportional to 264,441,703.60, 396,662,555.40 and 156,946,279.60 is: 235,419,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,441,703.60 : 396,662,555.40 = 156,946,279.60 : x
  2. Step 2: Convert to fraction form
    264,441,703.60/396,662,555.40 = 156,946,279.60/x
  3. Step 3: Cross multiply
    264,441,703.60x = 396,662,555.40 × 156,946,279.60
  4. Step 4: Simplify right side
    264,441,703.60x = 62,254,712,326,658,880
  5. Step 5: Solve for x
    x = 62,254,712,326,658,880/264,441,703.60
  6. Step 6: Final answer
    x = 235,419,419.40

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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.