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Finding the Fourth Proportional to 97,804.80, 134,985.60 and 60,105.60

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Solution

The fourth proportional to 97,804.80, 134,985.60 and 60,105.60 is: 82,954.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,804.80 : 134,985.60 = 60,105.60 : x
  2. Step 2: Convert to fraction form
    97,804.80/134,985.60 = 60,105.60/x
  3. Step 3: Cross multiply
    97,804.80x = 134,985.60 × 60,105.60
  4. Step 4: Simplify right side
    97,804.80x = 8,113,390,479.36
  5. Step 5: Solve for x
    x = 8,113,390,479.36/97,804.80
  6. Step 6: Final answer
    x = 82,954.93

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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.