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Finding the Fourth Proportional to 78,877.80, 118,316.70 and 23,473.80

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Solution

The fourth proportional to 78,877.80, 118,316.70 and 23,473.80 is: 35,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,877.80 : 118,316.70 = 23,473.80 : x
  2. Step 2: Convert to fraction form
    78,877.80/118,316.70 = 23,473.80/x
  3. Step 3: Cross multiply
    78,877.80x = 118,316.70 × 23,473.80
  4. Step 4: Simplify right side
    78,877.80x = 2,777,342,552.46
  5. Step 5: Solve for x
    x = 2,777,342,552.46/78,877.80
  6. Step 6: Final answer
    x = 35,210.70

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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.