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Finding the Fourth Proportional to 101,802.51, 140,494.11 and 58,783.82

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Solution

The fourth proportional to 101,802.51, 140,494.11 and 58,783.82 is: 81,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,802.51 : 140,494.11 = 58,783.82 : x
  2. Step 2: Convert to fraction form
    101,802.51/140,494.11 = 58,783.82/x
  3. Step 3: Cross multiply
    101,802.51x = 140,494.11 × 58,783.82
  4. Step 4: Simplify right side
    101,802.51x = 8,258,779,550.39
  5. Step 5: Solve for x
    x = 8,258,779,550.39/101,802.51
  6. Step 6: Final answer
    x = 81,125.50

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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.