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Finding the Fourth Proportional to 113,779.65, 157,015.59 and 62,792.01

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Solution

The fourth proportional to 113,779.65, 157,015.59 and 62,792.01 is: 86,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,779.65 : 157,015.59 = 62,792.01 : x
  2. Step 2: Convert to fraction form
    113,779.65/157,015.59 = 62,792.01/x
  3. Step 3: Cross multiply
    113,779.65x = 157,015.59 × 62,792.01
  4. Step 4: Simplify right side
    113,779.65x = 9,859,323,673.16
  5. Step 5: Solve for x
    x = 9,859,323,673.16/113,779.65
  6. Step 6: Final answer
    x = 86,652.79

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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.