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Finding the Fourth Proportional to 255,622.95, 352,785.93 and 153,681.63

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Solution

The fourth proportional to 255,622.95, 352,785.93 and 153,681.63 is: 212,096.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,622.95 : 352,785.93 = 153,681.63 : x
  2. Step 2: Convert to fraction form
    255,622.95/352,785.93 = 153,681.63/x
  3. Step 3: Cross multiply
    255,622.95x = 352,785.93 × 153,681.63
  4. Step 4: Simplify right side
    255,622.95x = 54,216,716,763.47
  5. Step 5: Solve for x
    x = 54,216,716,763.47/255,622.95
  6. Step 6: Final answer
    x = 212,096.44

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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.