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Finding the Fourth Proportional to 156,763.98, 216,368.28 and 96,386.40

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Solution

The fourth proportional to 156,763.98, 216,368.28 and 96,386.40 is: 133,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.98 : 216,368.28 = 96,386.40 : x
  2. Step 2: Convert to fraction form
    156,763.98/216,368.28 = 96,386.40/x
  3. Step 3: Cross multiply
    156,763.98x = 216,368.28 × 96,386.40
  4. Step 4: Simplify right side
    156,763.98x = 20,854,959,583.39
  5. Step 5: Solve for x
    x = 20,854,959,583.39/156,763.98
  6. Step 6: Final answer
    x = 133,034.13

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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.