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Finding the Fourth Proportional to 121,478.63, 182,270.57 and 65,253.14

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Solution

The fourth proportional to 121,478.63, 182,270.57 and 65,253.14 is: 97,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,478.63 : 182,270.57 = 65,253.14 : x
  2. Step 2: Convert to fraction form
    121,478.63/182,270.57 = 65,253.14/x
  3. Step 3: Cross multiply
    121,478.63x = 182,270.57 × 65,253.14
  4. Step 4: Simplify right side
    121,478.63x = 11,893,726,957.38
  5. Step 5: Solve for x
    x = 11,893,726,957.38/121,478.63
  6. Step 6: Final answer
    x = 97,907.98

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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.