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Finding the Fourth Proportional to 371,763.84, 556,897.32 and 171,808.86

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Solution

The fourth proportional to 371,763.84, 556,897.32 and 171,808.86 is: 257,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,763.84 : 556,897.32 = 171,808.86 : x
  2. Step 2: Convert to fraction form
    371,763.84/556,897.32 = 171,808.86/x
  3. Step 3: Cross multiply
    371,763.84x = 556,897.32 × 171,808.86
  4. Step 4: Simplify right side
    371,763.84x = 95,679,893,686.26
  5. Step 5: Solve for x
    x = 95,679,893,686.26/371,763.84
  6. Step 6: Final answer
    x = 257,367.40

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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.