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Finding the Fourth Proportional to 116,899.80, 175,365.90 and 42,001.80

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Solution

The fourth proportional to 116,899.80, 175,365.90 and 42,001.80 is: 63,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,899.80 : 175,365.90 = 42,001.80 : x
  2. Step 2: Convert to fraction form
    116,899.80/175,365.90 = 42,001.80/x
  3. Step 3: Cross multiply
    116,899.80x = 175,365.90 × 42,001.80
  4. Step 4: Simplify right side
    116,899.80x = 7,365,683,458.62
  5. Step 5: Solve for x
    x = 7,365,683,458.62/116,899.80
  6. Step 6: Final answer
    x = 63,008.52

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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.