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Finding the Fourth Proportional to 170,681.81, 235,492.34 and 102,664.74

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Solution

The fourth proportional to 170,681.81, 235,492.34 and 102,664.74 is: 141,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,681.81 : 235,492.34 = 102,664.74 : x
  2. Step 2: Convert to fraction form
    170,681.81/235,492.34 = 102,664.74/x
  3. Step 3: Cross multiply
    170,681.81x = 235,492.34 × 102,664.74
  4. Step 4: Simplify right side
    170,681.81x = 24,176,759,344.77
  5. Step 5: Solve for x
    x = 24,176,759,344.77/170,681.81
  6. Step 6: Final answer
    x = 141,648.13

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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.