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Finding the Fourth Proportional to 88,703.10, 133,054.65 and 57,210.30

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Solution

The fourth proportional to 88,703.10, 133,054.65 and 57,210.30 is: 85,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,703.10 : 133,054.65 = 57,210.30 : x
  2. Step 2: Convert to fraction form
    88,703.10/133,054.65 = 57,210.30/x
  3. Step 3: Cross multiply
    88,703.10x = 133,054.65 × 57,210.30
  4. Step 4: Simplify right side
    88,703.10x = 7,612,096,442.90
  5. Step 5: Solve for x
    x = 7,612,096,442.90/88,703.10
  6. Step 6: Final answer
    x = 85,815.45

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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.