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Finding the Fourth Proportional to 356,417.61, 534,599.68 and 103,700.04

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Solution

The fourth proportional to 356,417.61, 534,599.68 and 103,700.04 is: 155,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,417.61 : 534,599.68 = 103,700.04 : x
  2. Step 2: Convert to fraction form
    356,417.61/534,599.68 = 103,700.04/x
  3. Step 3: Cross multiply
    356,417.61x = 534,599.68 × 103,700.04
  4. Step 4: Simplify right side
    356,417.61x = 55,438,008,199.99
  5. Step 5: Solve for x
    x = 55,438,008,199.99/356,417.61
  6. Step 6: Final answer
    x = 155,542.28

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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.