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Finding the Fourth Proportional to 181,699.20, 272,548.80 and 118,713.60

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Solution

The fourth proportional to 181,699.20, 272,548.80 and 118,713.60 is: 178,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,699.20 : 272,548.80 = 118,713.60 : x
  2. Step 2: Convert to fraction form
    181,699.20/272,548.80 = 118,713.60/x
  3. Step 3: Cross multiply
    181,699.20x = 272,548.80 × 118,713.60
  4. Step 4: Simplify right side
    181,699.20x = 32,355,249,223.68
  5. Step 5: Solve for x
    x = 32,355,249,223.68/181,699.20
  6. Step 6: Final answer
    x = 178,070.40

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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.