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Finding the Fourth Proportional to 70,314.24, 105,305.04 and 61,030.02

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Solution

The fourth proportional to 70,314.24, 105,305.04 and 61,030.02 is: 91,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,314.24 : 105,305.04 = 61,030.02 : x
  2. Step 2: Convert to fraction form
    70,314.24/105,305.04 = 61,030.02/x
  3. Step 3: Cross multiply
    70,314.24x = 105,305.04 × 61,030.02
  4. Step 4: Simplify right side
    70,314.24x = 6,426,768,697.30
  5. Step 5: Solve for x
    x = 6,426,768,697.30/70,314.24
  6. Step 6: Final answer
    x = 91,400.67

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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.