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Finding the Fourth Proportional to 112,365.80, 168,548.70 and 101,090.60

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Solution

The fourth proportional to 112,365.80, 168,548.70 and 101,090.60 is: 151,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,365.80 : 168,548.70 = 101,090.60 : x
  2. Step 2: Convert to fraction form
    112,365.80/168,548.70 = 101,090.60/x
  3. Step 3: Cross multiply
    112,365.80x = 168,548.70 × 101,090.60
  4. Step 4: Simplify right side
    112,365.80x = 17,038,689,212.22
  5. Step 5: Solve for x
    x = 17,038,689,212.22/112,365.80
  6. Step 6: Final answer
    x = 151,635.90

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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.