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Finding the Fourth Proportional to 162,689.85, 224,547.12 and 99,048.15

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Solution

The fourth proportional to 162,689.85, 224,547.12 and 99,048.15 is: 136,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,689.85 : 224,547.12 = 99,048.15 : x
  2. Step 2: Convert to fraction form
    162,689.85/224,547.12 = 99,048.15/x
  3. Step 3: Cross multiply
    162,689.85x = 224,547.12 × 99,048.15
  4. Step 4: Simplify right side
    162,689.85x = 22,240,976,823.83
  5. Step 5: Solve for x
    x = 22,240,976,823.83/162,689.85
  6. Step 6: Final answer
    x = 136,707.83

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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.