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Finding the Fourth Proportional to 316,877.94, 475,422.82 and 103,655.58

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Solution

The fourth proportional to 316,877.94, 475,422.82 and 103,655.58 is: 155,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,877.94 : 475,422.82 = 103,655.58 : x
  2. Step 2: Convert to fraction form
    316,877.94/475,422.82 = 103,655.58/x
  3. Step 3: Cross multiply
    316,877.94x = 475,422.82 × 103,655.58
  4. Step 4: Simplify right side
    316,877.94x = 49,280,228,152.34
  5. Step 5: Solve for x
    x = 49,280,228,152.34/316,877.94
  6. Step 6: Final answer
    x = 155,518.01

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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.