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Finding the Fourth Proportional to 249,662.80, 344,534.16 and 136,485.52

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Solution

The fourth proportional to 249,662.80, 344,534.16 and 136,485.52 is: 188,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,662.80 : 344,534.16 = 136,485.52 : x
  2. Step 2: Convert to fraction form
    249,662.80/344,534.16 = 136,485.52/x
  3. Step 3: Cross multiply
    249,662.80x = 344,534.16 × 136,485.52
  4. Step 4: Simplify right side
    249,662.80x = 47,023,923,985.36
  5. Step 5: Solve for x
    x = 47,023,923,985.36/249,662.80
  6. Step 6: Final answer
    x = 188,349.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.