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Finding the Fourth Proportional to 356,509.70, 534,852.26 and 103,792.40

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Solution

The fourth proportional to 356,509.70, 534,852.26 and 103,792.40 is: 155,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,509.70 : 534,852.26 = 103,792.40 : x
  2. Step 2: Convert to fraction form
    356,509.70/534,852.26 = 103,792.40/x
  3. Step 3: Cross multiply
    356,509.70x = 534,852.26 × 103,792.40
  4. Step 4: Simplify right side
    356,509.70x = 55,513,600,248.49
  5. Step 5: Solve for x
    x = 55,513,600,248.49/356,509.70
  6. Step 6: Final answer
    x = 155,714.14

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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.