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Finding the Fourth Proportional to 81,840.32, 112,938.53 and 46,030.32

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Solution

The fourth proportional to 81,840.32, 112,938.53 and 46,030.32 is: 63,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,840.32 : 112,938.53 = 46,030.32 : x
  2. Step 2: Convert to fraction form
    81,840.32/112,938.53 = 46,030.32/x
  3. Step 3: Cross multiply
    81,840.32x = 112,938.53 × 46,030.32
  4. Step 4: Simplify right side
    81,840.32x = 5,198,596,791.31
  5. Step 5: Solve for x
    x = 5,198,596,791.31/81,840.32
  6. Step 6: Final answer
    x = 63,521.22

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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.