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Finding the Fourth Proportional to 134,653.67, 185,822.01 and 74,225.32

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Solution

The fourth proportional to 134,653.67, 185,822.01 and 74,225.32 is: 102,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,653.67 : 185,822.01 = 74,225.32 : x
  2. Step 2: Convert to fraction form
    134,653.67/185,822.01 = 74,225.32/x
  3. Step 3: Cross multiply
    134,653.67x = 185,822.01 × 74,225.32
  4. Step 4: Simplify right side
    134,653.67x = 13,792,697,690.74
  5. Step 5: Solve for x
    x = 13,792,697,690.74/134,653.67
  6. Step 6: Final answer
    x = 102,430.91

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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.