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Finding the Fourth Proportional to 124,322.71, 186,485.36 and 99,520.42

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Solution

The fourth proportional to 124,322.71, 186,485.36 and 99,520.42 is: 149,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,322.71 : 186,485.36 = 99,520.42 : x
  2. Step 2: Convert to fraction form
    124,322.71/186,485.36 = 99,520.42/x
  3. Step 3: Cross multiply
    124,322.71x = 186,485.36 × 99,520.42
  4. Step 4: Simplify right side
    124,322.71x = 18,559,101,058.57
  5. Step 5: Solve for x
    x = 18,559,101,058.57/124,322.71
  6. Step 6: Final answer
    x = 149,281.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.