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Finding the Fourth Proportional to 91,001.66, 125,646.30 and 63,835.46

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Solution

The fourth proportional to 91,001.66, 125,646.30 and 63,835.46 is: 88,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,001.66 : 125,646.30 = 63,835.46 : x
  2. Step 2: Convert to fraction form
    91,001.66/125,646.30 = 63,835.46/x
  3. Step 3: Cross multiply
    91,001.66x = 125,646.30 × 63,835.46
  4. Step 4: Simplify right side
    91,001.66x = 8,020,689,357.80
  5. Step 5: Solve for x
    x = 8,020,689,357.80/91,001.66
  6. Step 6: Final answer
    x = 88,137.84

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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.