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Finding the Fourth Proportional to 357,088.22, 535,258.68 and 120,349.16

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Solution

The fourth proportional to 357,088.22, 535,258.68 and 120,349.16 is: 180,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,088.22 : 535,258.68 = 120,349.16 : x
  2. Step 2: Convert to fraction form
    357,088.22/535,258.68 = 120,349.16/x
  3. Step 3: Cross multiply
    357,088.22x = 535,258.68 × 120,349.16
  4. Step 4: Simplify right side
    357,088.22x = 64,417,932,520.71
  5. Step 5: Solve for x
    x = 64,417,932,520.71/357,088.22
  6. Step 6: Final answer
    x = 180,397.81

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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.