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Finding the Fourth Proportional to 109,598.55, 151,248 and 61,842.68

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Solution

The fourth proportional to 109,598.55, 151,248 and 61,842.68 is: 85,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,598.55 : 151,248 = 61,842.68 : x
  2. Step 2: Convert to fraction form
    109,598.55/151,248 = 61,842.68/x
  3. Step 3: Cross multiply
    109,598.55x = 151,248 × 61,842.68
  4. Step 4: Simplify right side
    109,598.55x = 9,353,580,908.40
  5. Step 5: Solve for x
    x = 9,353,580,908.40/109,598.55
  6. Step 6: Final answer
    x = 85,344.02

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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.