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Finding the Fourth Proportional to 464,085.60, 696,128.40 and 148,552.80

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Solution

The fourth proportional to 464,085.60, 696,128.40 and 148,552.80 is: 222,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,085.60 : 696,128.40 = 148,552.80 : x
  2. Step 2: Convert to fraction form
    464,085.60/696,128.40 = 148,552.80/x
  3. Step 3: Cross multiply
    464,085.60x = 696,128.40 × 148,552.80
  4. Step 4: Simplify right side
    464,085.60x = 103,411,822,979.52
  5. Step 5: Solve for x
    x = 103,411,822,979.52/464,085.60
  6. Step 6: Final answer
    x = 222,829.20

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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.