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Finding the Fourth Proportional to 265,712,284.80, 398,736,388.80 and 156,537,244.80

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Solution

The fourth proportional to 265,712,284.80, 398,736,388.80 and 156,537,244.80 is: 234,904,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,712,284.80 : 398,736,388.80 = 156,537,244.80 : x
  2. Step 2: Convert to fraction form
    265,712,284.80/398,736,388.80 = 156,537,244.80/x
  3. Step 3: Cross multiply
    265,712,284.80x = 398,736,388.80 × 156,537,244.80
  4. Step 4: Simplify right side
    265,712,284.80x = 62,417,095,704,253,584
  5. Step 5: Solve for x
    x = 62,417,095,704,253,584/265,712,284.80
  6. Step 6: Final answer
    x = 234,904,817.26

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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.