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Finding the Fourth Proportional to 119,614.50, 165,075.57 and 65,899.62

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Solution

The fourth proportional to 119,614.50, 165,075.57 and 65,899.62 is: 90,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,614.50 : 165,075.57 = 65,899.62 : x
  2. Step 2: Convert to fraction form
    119,614.50/165,075.57 = 65,899.62/x
  3. Step 3: Cross multiply
    119,614.50x = 165,075.57 × 65,899.62
  4. Step 4: Simplify right side
    119,614.50x = 10,878,417,334.28
  5. Step 5: Solve for x
    x = 10,878,417,334.28/119,614.50
  6. Step 6: Final answer
    x = 90,945.64

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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.