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Finding the Fourth Proportional to 318,196.88, 439,113.32 and 174,966.16

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Solution

The fourth proportional to 318,196.88, 439,113.32 and 174,966.16 is: 241,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,196.88 : 439,113.32 = 174,966.16 : x
  2. Step 2: Convert to fraction form
    318,196.88/439,113.32 = 174,966.16/x
  3. Step 3: Cross multiply
    318,196.88x = 439,113.32 × 174,966.16
  4. Step 4: Simplify right side
    318,196.88x = 76,829,971,405.25
  5. Step 5: Solve for x
    x = 76,829,971,405.25/318,196.88
  6. Step 6: Final answer
    x = 241,454.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.