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Finding the Fourth Proportional to 124,328.40, 186,492.60 and 84,670.80

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Solution

The fourth proportional to 124,328.40, 186,492.60 and 84,670.80 is: 127,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,328.40 : 186,492.60 = 84,670.80 : x
  2. Step 2: Convert to fraction form
    124,328.40/186,492.60 = 84,670.80/x
  3. Step 3: Cross multiply
    124,328.40x = 186,492.60 × 84,670.80
  4. Step 4: Simplify right side
    124,328.40x = 15,790,477,636.08
  5. Step 5: Solve for x
    x = 15,790,477,636.08/124,328.40
  6. Step 6: Final answer
    x = 127,006.20

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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.