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Finding the Fourth Proportional to 61,512.80, 92,123.40 and 61,512.80

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Solution

The fourth proportional to 61,512.80, 92,123.40 and 61,512.80 is: 92,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.80 : 92,123.40 = 61,512.80 : x
  2. Step 2: Convert to fraction form
    61,512.80/92,123.40 = 61,512.80/x
  3. Step 3: Cross multiply
    61,512.80x = 92,123.40 × 61,512.80
  4. Step 4: Simplify right side
    61,512.80x = 5,666,768,279.52
  5. Step 5: Solve for x
    x = 5,666,768,279.52/61,512.80
  6. Step 6: Final answer
    x = 92,123.40

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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.