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Finding the Fourth Proportional to 76,697.32, 114,508.04 and 64,890.76

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Solution

The fourth proportional to 76,697.32, 114,508.04 and 64,890.76 is: 96,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,697.32 : 114,508.04 = 64,890.76 : x
  2. Step 2: Convert to fraction form
    76,697.32/114,508.04 = 64,890.76/x
  3. Step 3: Cross multiply
    76,697.32x = 114,508.04 × 64,890.76
  4. Step 4: Simplify right side
    76,697.32x = 7,430,513,741.71
  5. Step 5: Solve for x
    x = 7,430,513,741.71/76,697.32
  6. Step 6: Final answer
    x = 96,881.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.