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Finding the Fourth Proportional to 500,956.64, 751,434.42 and 121,875.02

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Solution

The fourth proportional to 500,956.64, 751,434.42 and 121,875.02 is: 182,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,956.64 : 751,434.42 = 121,875.02 : x
  2. Step 2: Convert to fraction form
    500,956.64/751,434.42 = 121,875.02/x
  3. Step 3: Cross multiply
    500,956.64x = 751,434.42 × 121,875.02
  4. Step 4: Simplify right side
    500,956.64x = 91,581,084,966.19
  5. Step 5: Solve for x
    x = 91,581,084,966.19/500,956.64
  6. Step 6: Final answer
    x = 182,812.40

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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.