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Finding the Fourth Proportional to 180,503.39, 249,085.20 and 98,815.98

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Solution

The fourth proportional to 180,503.39, 249,085.20 and 98,815.98 is: 136,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,503.39 : 249,085.20 = 98,815.98 : x
  2. Step 2: Convert to fraction form
    180,503.39/249,085.20 = 98,815.98/x
  3. Step 3: Cross multiply
    180,503.39x = 249,085.20 × 98,815.98
  4. Step 4: Simplify right side
    180,503.39x = 24,613,598,141.50
  5. Step 5: Solve for x
    x = 24,613,598,141.50/180,503.39
  6. Step 6: Final answer
    x = 136,360.86

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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.