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Finding the Fourth Proportional to 228,085.86, 314,748.60 and 124,718.16

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Solution

The fourth proportional to 228,085.86, 314,748.60 and 124,718.16 is: 172,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,085.86 : 314,748.60 = 124,718.16 : x
  2. Step 2: Convert to fraction form
    228,085.86/314,748.60 = 124,718.16/x
  3. Step 3: Cross multiply
    228,085.86x = 314,748.60 × 124,718.16
  4. Step 4: Simplify right side
    228,085.86x = 39,254,866,254.58
  5. Step 5: Solve for x
    x = 39,254,866,254.58/228,085.86
  6. Step 6: Final answer
    x = 172,105.65

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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.