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Finding the Fourth Proportional to 88,416.70, 122,015.06 and 48,130.76

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Solution

The fourth proportional to 88,416.70, 122,015.06 and 48,130.76 is: 66,420.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,416.70 : 122,015.06 = 48,130.76 : x
  2. Step 2: Convert to fraction form
    88,416.70/122,015.06 = 48,130.76/x
  3. Step 3: Cross multiply
    88,416.70x = 122,015.06 × 48,130.76
  4. Step 4: Simplify right side
    88,416.70x = 5,872,677,569.25
  5. Step 5: Solve for x
    x = 5,872,677,569.25/88,416.70
  6. Step 6: Final answer
    x = 66,420.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.