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Finding the Fourth Proportional to 103,071.40, 154,607.10 and 32,957.80

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Solution

The fourth proportional to 103,071.40, 154,607.10 and 32,957.80 is: 49,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,071.40 : 154,607.10 = 32,957.80 : x
  2. Step 2: Convert to fraction form
    103,071.40/154,607.10 = 32,957.80/x
  3. Step 3: Cross multiply
    103,071.40x = 154,607.10 × 32,957.80
  4. Step 4: Simplify right side
    103,071.40x = 5,095,509,880.38
  5. Step 5: Solve for x
    x = 5,095,509,880.38/103,071.40
  6. Step 6: Final answer
    x = 49,436.70

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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.