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Finding the Fourth Proportional to 101,703.96, 140,307.30 and 61,394.76

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Solution

The fourth proportional to 101,703.96, 140,307.30 and 61,394.76 is: 84,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,703.96 : 140,307.30 = 61,394.76 : x
  2. Step 2: Convert to fraction form
    101,703.96/140,307.30 = 61,394.76/x
  3. Step 3: Cross multiply
    101,703.96x = 140,307.30 × 61,394.76
  4. Step 4: Simplify right side
    101,703.96x = 8,614,133,009.75
  5. Step 5: Solve for x
    x = 8,614,133,009.75/101,703.96
  6. Step 6: Final answer
    x = 84,698.11

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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.