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Finding the Fourth Proportional to 79,455.94, 109,668.30 and 45,484.12

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Solution

The fourth proportional to 79,455.94, 109,668.30 and 45,484.12 is: 62,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.94 : 109,668.30 = 45,484.12 : x
  2. Step 2: Convert to fraction form
    79,455.94/109,668.30 = 45,484.12/x
  3. Step 3: Cross multiply
    79,455.94x = 109,668.30 × 45,484.12
  4. Step 4: Simplify right side
    79,455.94x = 4,988,166,117.40
  5. Step 5: Solve for x
    x = 4,988,166,117.40/79,455.94
  6. Step 6: Final answer
    x = 62,779.02

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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.