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Finding the Fourth Proportional to 107,210.88, 147,960 and 62,501.76

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Solution

The fourth proportional to 107,210.88, 147,960 and 62,501.76 is: 86,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,210.88 : 147,960 = 62,501.76 : x
  2. Step 2: Convert to fraction form
    107,210.88/147,960 = 62,501.76/x
  3. Step 3: Cross multiply
    107,210.88x = 147,960 × 62,501.76
  4. Step 4: Simplify right side
    107,210.88x = 9,247,760,409.60
  5. Step 5: Solve for x
    x = 9,247,760,409.60/107,210.88
  6. Step 6: Final answer
    x = 86,257.67

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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.