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Finding the Fourth Proportional to 341,705.10, 512,557.65 and 88,985.10

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Solution

The fourth proportional to 341,705.10, 512,557.65 and 88,985.10 is: 133,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,705.10 : 512,557.65 = 88,985.10 : x
  2. Step 2: Convert to fraction form
    341,705.10/512,557.65 = 88,985.10/x
  3. Step 3: Cross multiply
    341,705.10x = 512,557.65 × 88,985.10
  4. Step 4: Simplify right side
    341,705.10x = 45,609,993,741.02
  5. Step 5: Solve for x
    x = 45,609,993,741.02/341,705.10
  6. Step 6: Final answer
    x = 133,477.65

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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.