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Finding the Fourth Proportional to 72,453.06, 99,934.65 and 70,014.54

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Solution

The fourth proportional to 72,453.06, 99,934.65 and 70,014.54 is: 96,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.06 : 99,934.65 = 70,014.54 : x
  2. Step 2: Convert to fraction form
    72,453.06/99,934.65 = 70,014.54/x
  3. Step 3: Cross multiply
    72,453.06x = 99,934.65 × 70,014.54
  4. Step 4: Simplify right side
    72,453.06x = 6,996,878,549.81
  5. Step 5: Solve for x
    x = 6,996,878,549.81/72,453.06
  6. Step 6: Final answer
    x = 96,571.19

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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.