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Finding the Fourth Proportional to 97,907.80, 135,115.46 and 55,466.32

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Solution

The fourth proportional to 97,907.80, 135,115.46 and 55,466.32 is: 76,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,907.80 : 135,115.46 = 55,466.32 : x
  2. Step 2: Convert to fraction form
    97,907.80/135,115.46 = 55,466.32/x
  3. Step 3: Cross multiply
    97,907.80x = 135,115.46 × 55,466.32
  4. Step 4: Simplify right side
    97,907.80x = 7,494,357,341.31
  5. Step 5: Solve for x
    x = 7,494,357,341.31/97,907.80
  6. Step 6: Final answer
    x = 76,545.05

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1.5x scale

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.