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Finding the Fourth Proportional to 108,648.84, 149,935.68 and 63,323.40

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Solution

The fourth proportional to 108,648.84, 149,935.68 and 63,323.40 is: 87,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,648.84 : 149,935.68 = 63,323.40 : x
  2. Step 2: Convert to fraction form
    108,648.84/149,935.68 = 63,323.40/x
  3. Step 3: Cross multiply
    108,648.84x = 149,935.68 × 63,323.40
  4. Step 4: Simplify right side
    108,648.84x = 9,494,437,038.91
  5. Step 5: Solve for x
    x = 9,494,437,038.91/108,648.84
  6. Step 6: Final answer
    x = 87,386.46

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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.