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Finding the Fourth Proportional to 157,547.40, 236,493.90 and 98,449.80

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Solution

The fourth proportional to 157,547.40, 236,493.90 and 98,449.80 is: 147,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,547.40 : 236,493.90 = 98,449.80 : x
  2. Step 2: Convert to fraction form
    157,547.40/236,493.90 = 98,449.80/x
  3. Step 3: Cross multiply
    157,547.40x = 236,493.90 × 98,449.80
  4. Step 4: Simplify right side
    157,547.40x = 23,282,777,156.22
  5. Step 5: Solve for x
    x = 23,282,777,156.22/157,547.40
  6. Step 6: Final answer
    x = 147,782.68

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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.