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Finding the Fourth Proportional to 163,636.86, 245,455.29 and 45,308.19

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Solution

The fourth proportional to 163,636.86, 245,455.29 and 45,308.19 is: 67,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,636.86 : 245,455.29 = 45,308.19 : x
  2. Step 2: Convert to fraction form
    163,636.86/245,455.29 = 45,308.19/x
  3. Step 3: Cross multiply
    163,636.86x = 245,455.29 × 45,308.19
  4. Step 4: Simplify right side
    163,636.86x = 11,121,134,915.83
  5. Step 5: Solve for x
    x = 11,121,134,915.83/163,636.86
  6. Step 6: Final answer
    x = 67,962.29

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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.