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Finding the Fourth Proportional to 180,520.16, 249,121.62 and 98,851.86

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Solution

The fourth proportional to 180,520.16, 249,121.62 and 98,851.86 is: 136,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,520.16 : 249,121.62 = 98,851.86 : x
  2. Step 2: Convert to fraction form
    180,520.16/249,121.62 = 98,851.86/x
  3. Step 3: Cross multiply
    180,520.16x = 249,121.62 × 98,851.86
  4. Step 4: Simplify right side
    180,520.16x = 24,626,135,503.21
  5. Step 5: Solve for x
    x = 24,626,135,503.21/180,520.16
  6. Step 6: Final answer
    x = 136,417.65

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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.