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Finding the Fourth Proportional to 163,885.40, 245,885.70 and 158,125.40

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Solution

The fourth proportional to 163,885.40, 245,885.70 and 158,125.40 is: 237,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,885.40 : 245,885.70 = 158,125.40 : x
  2. Step 2: Convert to fraction form
    163,885.40/245,885.70 = 158,125.40/x
  3. Step 3: Cross multiply
    163,885.40x = 245,885.70 × 158,125.40
  4. Step 4: Simplify right side
    163,885.40x = 38,880,774,666.78
  5. Step 5: Solve for x
    x = 38,880,774,666.78/163,885.40
  6. Step 6: Final answer
    x = 237,243.68

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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.