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Finding the Fourth Proportional to 417,477.29, 626,122.98 and 117,985.86

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Solution

The fourth proportional to 417,477.29, 626,122.98 and 117,985.86 is: 176,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,477.29 : 626,122.98 = 117,985.86 : x
  2. Step 2: Convert to fraction form
    417,477.29/626,122.98 = 117,985.86/x
  3. Step 3: Cross multiply
    417,477.29x = 626,122.98 × 117,985.86
  4. Step 4: Simplify right side
    417,477.29x = 73,873,658,261.06
  5. Step 5: Solve for x
    x = 73,873,658,261.06/417,477.29
  6. Step 6: Final answer
    x = 176,952.52

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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.