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Finding the Fourth Proportional to 358,108.94, 537,123.36 and 91,875.80

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Solution

The fourth proportional to 358,108.94, 537,123.36 and 91,875.80 is: 137,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,108.94 : 537,123.36 = 91,875.80 : x
  2. Step 2: Convert to fraction form
    358,108.94/537,123.36 = 91,875.80/x
  3. Step 3: Cross multiply
    358,108.94x = 537,123.36 × 91,875.80
  4. Step 4: Simplify right side
    358,108.94x = 49,348,638,398.69
  5. Step 5: Solve for x
    x = 49,348,638,398.69/358,108.94
  6. Step 6: Final answer
    x = 137,803.42

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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.