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Finding the Fourth Proportional to 72,318.60, 108,477.90 and 59,852.70

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Solution

The fourth proportional to 72,318.60, 108,477.90 and 59,852.70 is: 89,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,318.60 : 108,477.90 = 59,852.70 : x
  2. Step 2: Convert to fraction form
    72,318.60/108,477.90 = 59,852.70/x
  3. Step 3: Cross multiply
    72,318.60x = 108,477.90 × 59,852.70
  4. Step 4: Simplify right side
    72,318.60x = 6,492,695,205.33
  5. Step 5: Solve for x
    x = 6,492,695,205.33/72,318.60
  6. Step 6: Final answer
    x = 89,779.05

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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.