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Finding the Fourth Proportional to 95,979.90, 143,969.85 and 29,430.30

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Solution

The fourth proportional to 95,979.90, 143,969.85 and 29,430.30 is: 44,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,979.90 : 143,969.85 = 29,430.30 : x
  2. Step 2: Convert to fraction form
    95,979.90/143,969.85 = 29,430.30/x
  3. Step 3: Cross multiply
    95,979.90x = 143,969.85 × 29,430.30
  4. Step 4: Simplify right side
    95,979.90x = 4,237,075,876.46
  5. Step 5: Solve for x
    x = 4,237,075,876.46/95,979.90
  6. Step 6: Final answer
    x = 44,145.45

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1.5x scale

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.