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Finding the Fourth Proportional to 112,703.88, 155,536.22 and 62,402.88

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Solution

The fourth proportional to 112,703.88, 155,536.22 and 62,402.88 is: 86,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,703.88 : 155,536.22 = 62,402.88 : x
  2. Step 2: Convert to fraction form
    112,703.88/155,536.22 = 62,402.88/x
  3. Step 3: Cross multiply
    112,703.88x = 155,536.22 × 62,402.88
  4. Step 4: Simplify right side
    112,703.88x = 9,705,908,072.31
  5. Step 5: Solve for x
    x = 9,705,908,072.31/112,703.88
  6. Step 6: Final answer
    x = 86,118.67

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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.