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Finding the Fourth Proportional to 101,547.06, 140,134.83 and 56,835.06

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Solution

The fourth proportional to 101,547.06, 140,134.83 and 56,835.06 is: 78,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,547.06 : 140,134.83 = 56,835.06 : x
  2. Step 2: Convert to fraction form
    101,547.06/140,134.83 = 56,835.06/x
  3. Step 3: Cross multiply
    101,547.06x = 140,134.83 × 56,835.06
  4. Step 4: Simplify right side
    101,547.06x = 7,964,571,471.14
  5. Step 5: Solve for x
    x = 7,964,571,471.14/101,547.06
  6. Step 6: Final answer
    x = 78,432.32

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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.