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Finding the Fourth Proportional to 417,148.84, 625,690.60 and 117,617.32

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Solution

The fourth proportional to 417,148.84, 625,690.60 and 117,617.32 is: 176,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,148.84 : 625,690.60 = 117,617.32 : x
  2. Step 2: Convert to fraction form
    417,148.84/625,690.60 = 117,617.32/x
  3. Step 3: Cross multiply
    417,148.84x = 625,690.60 × 117,617.32
  4. Step 4: Simplify right side
    417,148.84x = 73,592,051,521.19
  5. Step 5: Solve for x
    x = 73,592,051,521.19/417,148.84
  6. Step 6: Final answer
    x = 176,416.77

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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.