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Finding the Fourth Proportional to 132,762.31, 183,210.98 and 72,332.77

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Solution

The fourth proportional to 132,762.31, 183,210.98 and 72,332.77 is: 99,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,762.31 : 183,210.98 = 72,332.77 : x
  2. Step 2: Convert to fraction form
    132,762.31/183,210.98 = 72,332.77/x
  3. Step 3: Cross multiply
    132,762.31x = 183,210.98 × 72,332.77
  4. Step 4: Simplify right side
    132,762.31x = 13,252,156,858.12
  5. Step 5: Solve for x
    x = 13,252,156,858.12/132,762.31
  6. Step 6: Final answer
    x = 99,818.67

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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.