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Finding the Fourth Proportional to 122,946.60, 184,419.90 and 112,060.20

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Solution

The fourth proportional to 122,946.60, 184,419.90 and 112,060.20 is: 168,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,946.60 : 184,419.90 = 112,060.20 : x
  2. Step 2: Convert to fraction form
    122,946.60/184,419.90 = 112,060.20/x
  3. Step 3: Cross multiply
    122,946.60x = 184,419.90 × 112,060.20
  4. Step 4: Simplify right side
    122,946.60x = 20,666,130,877.98
  5. Step 5: Solve for x
    x = 20,666,130,877.98/122,946.60
  6. Step 6: Final answer
    x = 168,090.30

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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.