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Finding the Fourth Proportional to 180,062.01, 248,478.88 and 99,487.80

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Solution

The fourth proportional to 180,062.01, 248,478.88 and 99,487.80 is: 137,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,062.01 : 248,478.88 = 99,487.80 : x
  2. Step 2: Convert to fraction form
    180,062.01/248,478.88 = 99,487.80/x
  3. Step 3: Cross multiply
    180,062.01x = 248,478.88 × 99,487.80
  4. Step 4: Simplify right side
    180,062.01x = 24,720,617,117.66
  5. Step 5: Solve for x
    x = 24,720,617,117.66/180,062.01
  6. Step 6: Final answer
    x = 137,289.47

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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.