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Finding the Fourth Proportional to 249,951.60, 344,928.60 and 136,772.08

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Solution

The fourth proportional to 249,951.60, 344,928.60 and 136,772.08 is: 188,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,951.60 : 344,928.60 = 136,772.08 : x
  2. Step 2: Convert to fraction form
    249,951.60/344,928.60 = 136,772.08/x
  3. Step 3: Cross multiply
    249,951.60x = 344,928.60 × 136,772.08
  4. Step 4: Simplify right side
    249,951.60x = 47,176,602,073.49
  5. Step 5: Solve for x
    x = 47,176,602,073.49/249,951.60
  6. Step 6: Final answer
    x = 188,742.95

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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.