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Finding the Fourth Proportional to 157,461.61, 236,121.33 and 45,116.11

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Solution

The fourth proportional to 157,461.61, 236,121.33 and 45,116.11 is: 67,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,461.61 : 236,121.33 = 45,116.11 : x
  2. Step 2: Convert to fraction form
    157,461.61/236,121.33 = 45,116.11/x
  3. Step 3: Cross multiply
    157,461.61x = 236,121.33 × 45,116.11
  4. Step 4: Simplify right side
    157,461.61x = 10,652,875,897.63
  5. Step 5: Solve for x
    x = 10,652,875,897.63/157,461.61
  6. Step 6: Final answer
    x = 67,653.80

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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.