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Finding the Fourth Proportional to 97,905.80, 146,858.70 and 92,851.40

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Solution

The fourth proportional to 97,905.80, 146,858.70 and 92,851.40 is: 139,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,905.80 : 146,858.70 = 92,851.40 : x
  2. Step 2: Convert to fraction form
    97,905.80/146,858.70 = 92,851.40/x
  3. Step 3: Cross multiply
    97,905.80x = 146,858.70 × 92,851.40
  4. Step 4: Simplify right side
    97,905.80x = 13,636,035,897.18
  5. Step 5: Solve for x
    x = 13,636,035,897.18/97,905.80
  6. Step 6: Final answer
    x = 139,277.10

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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.