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Finding the Fourth Proportional to 212,802.66, 319,250.64 and 63,054.72

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Solution

The fourth proportional to 212,802.66, 319,250.64 and 63,054.72 is: 94,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,802.66 : 319,250.64 = 63,054.72 : x
  2. Step 2: Convert to fraction form
    212,802.66/319,250.64 = 63,054.72/x
  3. Step 3: Cross multiply
    212,802.66x = 319,250.64 × 63,054.72
  4. Step 4: Simplify right side
    212,802.66x = 20,130,259,715.02
  5. Step 5: Solve for x
    x = 20,130,259,715.02/212,802.66
  6. Step 6: Final answer
    x = 94,595.90

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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.