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Finding the Fourth Proportional to 316,914.61, 475,271.58 and 103,633.26

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Solution

The fourth proportional to 316,914.61, 475,271.58 and 103,633.26 is: 155,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,914.61 : 475,271.58 = 103,633.26 : x
  2. Step 2: Convert to fraction form
    316,914.61/475,271.58 = 103,633.26/x
  3. Step 3: Cross multiply
    316,914.61x = 475,271.58 × 103,633.26
  4. Step 4: Simplify right side
    316,914.61x = 49,253,943,220.75
  5. Step 5: Solve for x
    x = 49,253,943,220.75/316,914.61
  6. Step 6: Final answer
    x = 155,417.08

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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.