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Finding the Fourth Proportional to 91,347.42, 136,938.06 and 35,151.66

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Solution

The fourth proportional to 91,347.42, 136,938.06 and 35,151.66 is: 52,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,347.42 : 136,938.06 = 35,151.66 : x
  2. Step 2: Convert to fraction form
    91,347.42/136,938.06 = 35,151.66/x
  3. Step 3: Cross multiply
    91,347.42x = 136,938.06 × 35,151.66
  4. Step 4: Simplify right side
    91,347.42x = 4,813,600,126.18
  5. Step 5: Solve for x
    x = 4,813,600,126.18/91,347.42
  6. Step 6: Final answer
    x = 52,695.52

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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.