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Finding the Fourth Proportional to 475,964.66, 714,013.80 and 139,030.04

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Solution

The fourth proportional to 475,964.66, 714,013.80 and 139,030.04 is: 208,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,964.66 : 714,013.80 = 139,030.04 : x
  2. Step 2: Convert to fraction form
    475,964.66/714,013.80 = 139,030.04/x
  3. Step 3: Cross multiply
    475,964.66x = 714,013.80 × 139,030.04
  4. Step 4: Simplify right side
    475,964.66x = 99,269,367,174.55
  5. Step 5: Solve for x
    x = 99,269,367,174.55/475,964.66
  6. Step 6: Final answer
    x = 208,564.58

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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.