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Finding the Fourth Proportional to 169,717.61, 254,681.54 and 98,673.68

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Solution

The fourth proportional to 169,717.61, 254,681.54 and 98,673.68 is: 148,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,717.61 : 254,681.54 = 98,673.68 : x
  2. Step 2: Convert to fraction form
    169,717.61/254,681.54 = 98,673.68/x
  3. Step 3: Cross multiply
    169,717.61x = 254,681.54 × 98,673.68
  4. Step 4: Simplify right side
    169,717.61x = 25,130,364,779.87
  5. Step 5: Solve for x
    x = 25,130,364,779.87/169,717.61
  6. Step 6: Final answer
    x = 148,071.64

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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.