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Finding the Fourth Proportional to 357,888.72, 536,499.36 and 121,066.68

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Solution

The fourth proportional to 357,888.72, 536,499.36 and 121,066.68 is: 181,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,888.72 : 536,499.36 = 121,066.68 : x
  2. Step 2: Convert to fraction form
    357,888.72/536,499.36 = 121,066.68/x
  3. Step 3: Cross multiply
    357,888.72x = 536,499.36 × 121,066.68
  4. Step 4: Simplify right side
    357,888.72x = 64,952,196,337.32
  5. Step 5: Solve for x
    x = 64,952,196,337.32/357,888.72
  6. Step 6: Final answer
    x = 181,487.13

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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.