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Finding the Fourth Proportional to 97,492.20, 134,539.55 and 52,780.20

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Solution

The fourth proportional to 97,492.20, 134,539.55 and 52,780.20 is: 72,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,492.20 : 134,539.55 = 52,780.20 : x
  2. Step 2: Convert to fraction form
    97,492.20/134,539.55 = 52,780.20/x
  3. Step 3: Cross multiply
    97,492.20x = 134,539.55 × 52,780.20
  4. Step 4: Simplify right side
    97,492.20x = 7,101,024,356.91
  5. Step 5: Solve for x
    x = 7,101,024,356.91/97,492.20
  6. Step 6: Final answer
    x = 72,836.85

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1.5x scale

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.