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Finding the Fourth Proportional to 346,661, 519,925.74 and 168,989.32

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Solution

The fourth proportional to 346,661, 519,925.74 and 168,989.32 is: 253,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,661 : 519,925.74 = 168,989.32 : x
  2. Step 2: Convert to fraction form
    346,661/519,925.74 = 168,989.32/x
  3. Step 3: Cross multiply
    346,661x = 519,925.74 × 168,989.32
  4. Step 4: Simplify right side
    346,661x = 87,861,897,253.10
  5. Step 5: Solve for x
    x = 87,861,897,253.10/346,661
  6. Step 6: Final answer
    x = 253,451.92

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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.