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Finding the Fourth Proportional to 105,248, 156,518.61 and 101,925.56

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Solution

The fourth proportional to 105,248, 156,518.61 and 101,925.56 is: 151,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,248 : 156,518.61 = 101,925.56 : x
  2. Step 2: Convert to fraction form
    105,248/156,518.61 = 101,925.56/x
  3. Step 3: Cross multiply
    105,248x = 156,518.61 × 101,925.56
  4. Step 4: Simplify right side
    105,248x = 15,953,246,974.67
  5. Step 5: Solve for x
    x = 15,953,246,974.67/105,248
  6. Step 6: Final answer
    x = 151,577.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.