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Finding the Fourth Proportional to 60,713.20, 91,030.20 and 54,492.40

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Solution

The fourth proportional to 60,713.20, 91,030.20 and 54,492.40 is: 81,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,713.20 : 91,030.20 = 54,492.40 : x
  2. Step 2: Convert to fraction form
    60,713.20/91,030.20 = 54,492.40/x
  3. Step 3: Cross multiply
    60,713.20x = 91,030.20 × 54,492.40
  4. Step 4: Simplify right side
    60,713.20x = 4,960,454,070.48
  5. Step 5: Solve for x
    x = 4,960,454,070.48/60,713.20
  6. Step 6: Final answer
    x = 81,703.06

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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.