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Finding the Fourth Proportional to 109,230.16, 163,848.48 and 42,667.60

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Solution

The fourth proportional to 109,230.16, 163,848.48 and 42,667.60 is: 64,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,230.16 : 163,848.48 = 42,667.60 : x
  2. Step 2: Convert to fraction form
    109,230.16/163,848.48 = 42,667.60/x
  3. Step 3: Cross multiply
    109,230.16x = 163,848.48 × 42,667.60
  4. Step 4: Simplify right side
    109,230.16x = 6,991,021,405.25
  5. Step 5: Solve for x
    x = 6,991,021,405.25/109,230.16
  6. Step 6: Final answer
    x = 64,002.67

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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.