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Finding the Fourth Proportional to 476,898.92, 715,459.02 and 139,925.96

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Solution

The fourth proportional to 476,898.92, 715,459.02 and 139,925.96 is: 209,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,898.92 : 715,459.02 = 139,925.96 : x
  2. Step 2: Convert to fraction form
    476,898.92/715,459.02 = 139,925.96/x
  3. Step 3: Cross multiply
    476,898.92x = 715,459.02 × 139,925.96
  4. Step 4: Simplify right side
    476,898.92x = 100,111,290,214.16
  5. Step 5: Solve for x
    x = 100,111,290,214.16/476,898.92
  6. Step 6: Final answer
    x = 209,921.40

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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.