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Finding the Fourth Proportional to 86,800.68, 119,793.80 and 52,811.60

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Solution

The fourth proportional to 86,800.68, 119,793.80 and 52,811.60 is: 72,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.68 : 119,793.80 = 52,811.60 : x
  2. Step 2: Convert to fraction form
    86,800.68/119,793.80 = 52,811.60/x
  3. Step 3: Cross multiply
    86,800.68x = 119,793.80 × 52,811.60
  4. Step 4: Simplify right side
    86,800.68x = 6,326,502,248.08
  5. Step 5: Solve for x
    x = 6,326,502,248.08/86,800.68
  6. Step 6: Final answer
    x = 72,885.40

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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.