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Finding the Fourth Proportional to 210,250.60, 315,426.12 and 70,010.44

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Solution

The fourth proportional to 210,250.60, 315,426.12 and 70,010.44 is: 105,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,250.60 : 315,426.12 = 70,010.44 : x
  2. Step 2: Convert to fraction form
    210,250.60/315,426.12 = 70,010.44/x
  3. Step 3: Cross multiply
    210,250.60x = 315,426.12 × 70,010.44
  4. Step 4: Simplify right side
    210,250.60x = 22,083,121,448.69
  5. Step 5: Solve for x
    x = 22,083,121,448.69/210,250.60
  6. Step 6: Final answer
    x = 105,032.38

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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.