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Finding the Fourth Proportional to 157,037.66, 216,619.62 and 98,801.78

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Solution

The fourth proportional to 157,037.66, 216,619.62 and 98,801.78 is: 136,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,037.66 : 216,619.62 = 98,801.78 : x
  2. Step 2: Convert to fraction form
    157,037.66/216,619.62 = 98,801.78/x
  3. Step 3: Cross multiply
    157,037.66x = 216,619.62 × 98,801.78
  4. Step 4: Simplify right side
    157,037.66x = 21,402,404,038.92
  5. Step 5: Solve for x
    x = 21,402,404,038.92/157,037.66
  6. Step 6: Final answer
    x = 136,288.35

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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.