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Finding the Fourth Proportional to 123,060.60, 184,590.90 and 105,345.90

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Solution

The fourth proportional to 123,060.60, 184,590.90 and 105,345.90 is: 158,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,060.60 : 184,590.90 = 105,345.90 : x
  2. Step 2: Convert to fraction form
    123,060.60/184,590.90 = 105,345.90/x
  3. Step 3: Cross multiply
    123,060.60x = 184,590.90 × 105,345.90
  4. Step 4: Simplify right side
    123,060.60x = 19,445,894,492.31
  5. Step 5: Solve for x
    x = 19,445,894,492.31/123,060.60
  6. Step 6: Final answer
    x = 158,018.85

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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.