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Finding the Fourth Proportional to 76,117.40, 114,176.10 and 73,055.60

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Solution

The fourth proportional to 76,117.40, 114,176.10 and 73,055.60 is: 109,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,117.40 : 114,176.10 = 73,055.60 : x
  2. Step 2: Convert to fraction form
    76,117.40/114,176.10 = 73,055.60/x
  3. Step 3: Cross multiply
    76,117.40x = 114,176.10 × 73,055.60
  4. Step 4: Simplify right side
    76,117.40x = 8,341,203,491.16
  5. Step 5: Solve for x
    x = 8,341,203,491.16/76,117.40
  6. Step 6: Final answer
    x = 109,583.40

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1.5x scale

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.