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Finding the Fourth Proportional to 150,509.55, 207,695.20 and 85,966.11

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Solution

The fourth proportional to 150,509.55, 207,695.20 and 85,966.11 is: 118,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,509.55 : 207,695.20 = 85,966.11 : x
  2. Step 2: Convert to fraction form
    150,509.55/207,695.20 = 85,966.11/x
  3. Step 3: Cross multiply
    150,509.55x = 207,695.20 × 85,966.11
  4. Step 4: Simplify right side
    150,509.55x = 17,854,748,194.76
  5. Step 5: Solve for x
    x = 17,854,748,194.76/150,509.55
  6. Step 6: Final answer
    x = 118,628.67

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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.