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Finding the Fourth Proportional to 98,312.58, 135,673.29 and 53,600.58

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Solution

The fourth proportional to 98,312.58, 135,673.29 and 53,600.58 is: 73,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,312.58 : 135,673.29 = 53,600.58 : x
  2. Step 2: Convert to fraction form
    98,312.58/135,673.29 = 53,600.58/x
  3. Step 3: Cross multiply
    98,312.58x = 135,673.29 × 53,600.58
  4. Step 4: Simplify right side
    98,312.58x = 7,272,167,034.51
  5. Step 5: Solve for x
    x = 7,272,167,034.51/98,312.58
  6. Step 6: Final answer
    x = 73,969.85

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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.