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Finding the Fourth Proportional to 117,530.40, 176,230.80 and 47,330.40

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Solution

The fourth proportional to 117,530.40, 176,230.80 and 47,330.40 is: 70,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,530.40 : 176,230.80 = 47,330.40 : x
  2. Step 2: Convert to fraction form
    117,530.40/176,230.80 = 47,330.40/x
  3. Step 3: Cross multiply
    117,530.40x = 176,230.80 × 47,330.40
  4. Step 4: Simplify right side
    117,530.40x = 8,341,074,256.32
  5. Step 5: Solve for x
    x = 8,341,074,256.32/117,530.40
  6. Step 6: Final answer
    x = 70,969.50

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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.