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Finding the Fourth Proportional to 157,598.47, 217,477.03 and 89,631.98

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Solution

The fourth proportional to 157,598.47, 217,477.03 and 89,631.98 is: 123,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,598.47 : 217,477.03 = 89,631.98 : x
  2. Step 2: Convert to fraction form
    157,598.47/217,477.03 = 89,631.98/x
  3. Step 3: Cross multiply
    157,598.47x = 217,477.03 × 89,631.98
  4. Step 4: Simplify right side
    157,598.47x = 19,492,896,803.42
  5. Step 5: Solve for x
    x = 19,492,896,803.42/157,598.47
  6. Step 6: Final answer
    x = 123,687.09

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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.