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Finding the Fourth Proportional to 153,157.40, 211,365.44 and 89,532.44

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Solution

The fourth proportional to 153,157.40, 211,365.44 and 89,532.44 is: 123,559.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,157.40 : 211,365.44 = 89,532.44 : x
  2. Step 2: Convert to fraction form
    153,157.40/211,365.44 = 89,532.44/x
  3. Step 3: Cross multiply
    153,157.40x = 211,365.44 × 89,532.44
  4. Step 4: Simplify right side
    153,157.40x = 18,924,063,574.87
  5. Step 5: Solve for x
    x = 18,924,063,574.87/153,157.40
  6. Step 6: Final answer
    x = 123,559.58

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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.