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Finding the Fourth Proportional to 157,616.80, 236,643.90 and 98,567.80

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Solution

The fourth proportional to 157,616.80, 236,643.90 and 98,567.80 is: 147,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,616.80 : 236,643.90 = 98,567.80 : x
  2. Step 2: Convert to fraction form
    157,616.80/236,643.90 = 98,567.80/x
  3. Step 3: Cross multiply
    157,616.80x = 236,643.90 × 98,567.80
  4. Step 4: Simplify right side
    157,616.80x = 23,325,468,606.42
  5. Step 5: Solve for x
    x = 23,325,468,606.42/157,616.80
  6. Step 6: Final answer
    x = 147,988.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.