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Finding the Fourth Proportional to 92,145.87, 127,200.53 and 61,948.71

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Solution

The fourth proportional to 92,145.87, 127,200.53 and 61,948.71 is: 85,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,145.87 : 127,200.53 = 61,948.71 : x
  2. Step 2: Convert to fraction form
    92,145.87/127,200.53 = 61,948.71/x
  3. Step 3: Cross multiply
    92,145.87x = 127,200.53 × 61,948.71
  4. Step 4: Simplify right side
    92,145.87x = 7,879,908,744.82
  5. Step 5: Solve for x
    x = 7,879,908,744.82/92,145.87
  6. Step 6: Final answer
    x = 85,515.59

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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.