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Finding the Fourth Proportional to 110,730, 152,807.55 and 60,429

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Solution

The fourth proportional to 110,730, 152,807.55 and 60,429 is: 83,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,730 : 152,807.55 = 60,429 : x
  2. Step 2: Convert to fraction form
    110,730/152,807.55 = 60,429/x
  3. Step 3: Cross multiply
    110,730x = 152,807.55 × 60,429
  4. Step 4: Simplify right side
    110,730x = 9,234,007,438.95
  5. Step 5: Solve for x
    x = 9,234,007,438.95/110,730
  6. Step 6: Final answer
    x = 83,392.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.