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Finding the Fourth Proportional to 78,925.95, 108,889.52 and 46,653.80

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Solution

The fourth proportional to 78,925.95, 108,889.52 and 46,653.80 is: 64,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925.95 : 108,889.52 = 46,653.80 : x
  2. Step 2: Convert to fraction form
    78,925.95/108,889.52 = 46,653.80/x
  3. Step 3: Cross multiply
    78,925.95x = 108,889.52 × 46,653.80
  4. Step 4: Simplify right side
    78,925.95x = 5,080,109,110.46
  5. Step 5: Solve for x
    x = 5,080,109,110.46/78,925.95
  6. Step 6: Final answer
    x = 64,365.51

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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.