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Finding the Fourth Proportional to 180,898.72, 249,763.96 and 113,019.12

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Solution

The fourth proportional to 180,898.72, 249,763.96 and 113,019.12 is: 156,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,898.72 : 249,763.96 = 113,019.12 : x
  2. Step 2: Convert to fraction form
    180,898.72/249,763.96 = 113,019.12/x
  3. Step 3: Cross multiply
    180,898.72x = 249,763.96 × 113,019.12
  4. Step 4: Simplify right side
    180,898.72x = 28,228,102,966.92
  5. Step 5: Solve for x
    x = 28,228,102,966.92/180,898.72
  6. Step 6: Final answer
    x = 156,043.69

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1.5x scale

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.