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Finding the Fourth Proportional to 112,007.40, 168,059.70 and 56,603.40

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Solution

The fourth proportional to 112,007.40, 168,059.70 and 56,603.40 is: 84,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,007.40 : 168,059.70 = 56,603.40 : x
  2. Step 2: Convert to fraction form
    112,007.40/168,059.70 = 56,603.40/x
  3. Step 3: Cross multiply
    112,007.40x = 168,059.70 × 56,603.40
  4. Step 4: Simplify right side
    112,007.40x = 9,512,750,422.98
  5. Step 5: Solve for x
    x = 9,512,750,422.98/112,007.40
  6. Step 6: Final answer
    x = 84,929.66

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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.