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Finding the Fourth Proportional to 117,698.40, 176,547.60 and 47,541.60

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Solution

The fourth proportional to 117,698.40, 176,547.60 and 47,541.60 is: 71,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,698.40 : 176,547.60 = 47,541.60 : x
  2. Step 2: Convert to fraction form
    117,698.40/176,547.60 = 47,541.60/x
  3. Step 3: Cross multiply
    117,698.40x = 176,547.60 × 47,541.60
  4. Step 4: Simplify right side
    117,698.40x = 8,393,355,380.16
  5. Step 5: Solve for x
    x = 8,393,355,380.16/117,698.40
  6. Step 6: Final answer
    x = 71,312.40

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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.