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Finding the Fourth Proportional to 88,715.94, 122,428.34 and 48,430.59

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Solution

The fourth proportional to 88,715.94, 122,428.34 and 48,430.59 is: 66,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,715.94 : 122,428.34 = 48,430.59 : x
  2. Step 2: Convert to fraction form
    88,715.94/122,428.34 = 48,430.59/x
  3. Step 3: Cross multiply
    88,715.94x = 122,428.34 × 48,430.59
  4. Step 4: Simplify right side
    88,715.94x = 5,929,276,738.92
  5. Step 5: Solve for x
    x = 5,929,276,738.92/88,715.94
  6. Step 6: Final answer
    x = 66,834.40

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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.