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Finding the Fourth Proportional to 111,452.30, 153,804.15 and 63,706.67

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Solution

The fourth proportional to 111,452.30, 153,804.15 and 63,706.67 is: 87,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,452.30 : 153,804.15 = 63,706.67 : x
  2. Step 2: Convert to fraction form
    111,452.30/153,804.15 = 63,706.67/x
  3. Step 3: Cross multiply
    111,452.30x = 153,804.15 × 63,706.67
  4. Step 4: Simplify right side
    111,452.30x = 9,798,349,844.17
  5. Step 5: Solve for x
    x = 9,798,349,844.17/111,452.30
  6. Step 6: Final answer
    x = 87,915.19

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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.