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Finding the Fourth Proportional to 255,477.83, 352,542.54 and 153,442.67

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Solution

The fourth proportional to 255,477.83, 352,542.54 and 153,442.67 is: 211,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,477.83 : 352,542.54 = 153,442.67 : x
  2. Step 2: Convert to fraction form
    255,477.83/352,542.54 = 153,442.67/x
  3. Step 3: Cross multiply
    255,477.83x = 352,542.54 × 153,442.67
  4. Step 4: Simplify right side
    255,477.83x = 54,095,066,863.47
  5. Step 5: Solve for x
    x = 54,095,066,863.47/255,477.83
  6. Step 6: Final answer
    x = 211,740.75

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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.