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Finding the Fourth Proportional to 219,403.08, 301,613.82 and 188,663.60

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Solution

The fourth proportional to 219,403.08, 301,613.82 and 188,663.60 is: 259,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,403.08 : 301,613.82 = 188,663.60 : x
  2. Step 2: Convert to fraction form
    219,403.08/301,613.82 = 188,663.60/x
  3. Step 3: Cross multiply
    219,403.08x = 301,613.82 × 188,663.60
  4. Step 4: Simplify right side
    219,403.08x = 56,903,547,582.88
  5. Step 5: Solve for x
    x = 56,903,547,582.88/219,403.08
  6. Step 6: Final answer
    x = 259,356.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.