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Finding the Fourth Proportional to 108,615.84, 162,904.08 and 37,538.40

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Solution

The fourth proportional to 108,615.84, 162,904.08 and 37,538.40 is: 56,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.84 : 162,904.08 = 37,538.40 : x
  2. Step 2: Convert to fraction form
    108,615.84/162,904.08 = 37,538.40/x
  3. Step 3: Cross multiply
    108,615.84x = 162,904.08 × 37,538.40
  4. Step 4: Simplify right side
    108,615.84x = 6,115,158,516.67
  5. Step 5: Solve for x
    x = 6,115,158,516.67/108,615.84
  6. Step 6: Final answer
    x = 56,300.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.