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Finding the Fourth Proportional to 112,050.90, 156,987.90 and 112,050.90

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Solution

The fourth proportional to 112,050.90, 156,987.90 and 112,050.90 is: 156,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,050.90 : 156,987.90 = 112,050.90 : x
  2. Step 2: Convert to fraction form
    112,050.90/156,987.90 = 112,050.90/x
  3. Step 3: Cross multiply
    112,050.90x = 156,987.90 × 112,050.90
  4. Step 4: Simplify right side
    112,050.90x = 17,590,635,484.11
  5. Step 5: Solve for x
    x = 17,590,635,484.11/112,050.90
  6. Step 6: Final answer
    x = 156,987.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.