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Finding the Fourth Proportional to 118,506.34, 163,541.33 and 70,750.77

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Solution

The fourth proportional to 118,506.34, 163,541.33 and 70,750.77 is: 97,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,506.34 : 163,541.33 = 70,750.77 : x
  2. Step 2: Convert to fraction form
    118,506.34/163,541.33 = 70,750.77/x
  3. Step 3: Cross multiply
    118,506.34x = 163,541.33 × 70,750.77
  4. Step 4: Simplify right side
    118,506.34x = 11,570,675,024.32
  5. Step 5: Solve for x
    x = 11,570,675,024.32/118,506.34
  6. Step 6: Final answer
    x = 97,637.60

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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.