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Finding the Fourth Proportional to 338,686.52, 508,263.06 and 117,070.52

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Solution

The fourth proportional to 338,686.52, 508,263.06 and 117,070.52 is: 175,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,686.52 : 508,263.06 = 117,070.52 : x
  2. Step 2: Convert to fraction form
    338,686.52/508,263.06 = 117,070.52/x
  3. Step 3: Cross multiply
    338,686.52x = 508,263.06 × 117,070.52
  4. Step 4: Simplify right side
    338,686.52x = 59,502,620,730.99
  5. Step 5: Solve for x
    x = 59,502,620,730.99/338,686.52
  6. Step 6: Final answer
    x = 175,686.42

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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.