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Finding the Fourth Proportional to 88,779.66, 133,165.80 and 49,311.60

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Solution

The fourth proportional to 88,779.66, 133,165.80 and 49,311.60 is: 73,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,779.66 : 133,165.80 = 49,311.60 : x
  2. Step 2: Convert to fraction form
    88,779.66/133,165.80 = 49,311.60/x
  3. Step 3: Cross multiply
    88,779.66x = 133,165.80 × 49,311.60
  4. Step 4: Simplify right side
    88,779.66x = 6,566,618,663.28
  5. Step 5: Solve for x
    x = 6,566,618,663.28/88,779.66
  6. Step 6: Final answer
    x = 73,965.35

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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.