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Finding the Fourth Proportional to 113,580.80, 170,404.08 and 47,008.64

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Solution

The fourth proportional to 113,580.80, 170,404.08 and 47,008.64 is: 70,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,580.80 : 170,404.08 = 47,008.64 : x
  2. Step 2: Convert to fraction form
    113,580.80/170,404.08 = 47,008.64/x
  3. Step 3: Cross multiply
    113,580.80x = 170,404.08 × 47,008.64
  4. Step 4: Simplify right side
    113,580.80x = 8,010,464,051.25
  5. Step 5: Solve for x
    x = 8,010,464,051.25/113,580.80
  6. Step 6: Final answer
    x = 70,526.57

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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.