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Finding the Fourth Proportional to 121,476.60, 182,214.90 and 42,598.80

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Solution

The fourth proportional to 121,476.60, 182,214.90 and 42,598.80 is: 63,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,476.60 : 182,214.90 = 42,598.80 : x
  2. Step 2: Convert to fraction form
    121,476.60/182,214.90 = 42,598.80/x
  3. Step 3: Cross multiply
    121,476.60x = 182,214.90 × 42,598.80
  4. Step 4: Simplify right side
    121,476.60x = 7,762,136,082.12
  5. Step 5: Solve for x
    x = 7,762,136,082.12/121,476.60
  6. Step 6: Final answer
    x = 63,898.20

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1.5x scale

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.