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Finding the Fourth Proportional to 296,675.01, 445,085.42 and 86,314.77

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Solution

The fourth proportional to 296,675.01, 445,085.42 and 86,314.77 is: 129,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,675.01 : 445,085.42 = 86,314.77 : x
  2. Step 2: Convert to fraction form
    296,675.01/445,085.42 = 86,314.77/x
  3. Step 3: Cross multiply
    296,675.01x = 445,085.42 × 86,314.77
  4. Step 4: Simplify right side
    296,675.01x = 38,417,445,226.08
  5. Step 5: Solve for x
    x = 38,417,445,226.08/296,675.01
  6. Step 6: Final answer
    x = 129,493.36

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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.