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Finding the Fourth Proportional to 375,746.47, 563,611.50 and 91,438.29

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Solution

The fourth proportional to 375,746.47, 563,611.50 and 91,438.29 is: 137,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,746.47 : 563,611.50 = 91,438.29 : x
  2. Step 2: Convert to fraction form
    375,746.47/563,611.50 = 91,438.29/x
  3. Step 3: Cross multiply
    375,746.47x = 563,611.50 × 91,438.29
  4. Step 4: Simplify right side
    375,746.47x = 51,535,671,784.34
  5. Step 5: Solve for x
    x = 51,535,671,784.34/375,746.47
  6. Step 6: Final answer
    x = 137,155.44

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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.