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Finding the Fourth Proportional to 317,283.30, 475,712.06 and 124,981.92

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Solution

The fourth proportional to 317,283.30, 475,712.06 and 124,981.92 is: 187,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,283.30 : 475,712.06 = 124,981.92 : x
  2. Step 2: Convert to fraction form
    317,283.30/475,712.06 = 124,981.92/x
  3. Step 3: Cross multiply
    317,283.30x = 475,712.06 × 124,981.92
  4. Step 4: Simplify right side
    317,283.30x = 59,455,406,001.05
  5. Step 5: Solve for x
    x = 59,455,406,001.05/317,283.30
  6. Step 6: Final answer
    x = 187,389.02

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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.