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Finding the Fourth Proportional to 252,526.16, 348,482.76 and 139,346

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Solution

The fourth proportional to 252,526.16, 348,482.76 and 139,346 is: 192,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,526.16 : 348,482.76 = 139,346 : x
  2. Step 2: Convert to fraction form
    252,526.16/348,482.76 = 139,346/x
  3. Step 3: Cross multiply
    252,526.16x = 348,482.76 × 139,346
  4. Step 4: Simplify right side
    252,526.16x = 48,559,678,674.96
  5. Step 5: Solve for x
    x = 48,559,678,674.96/252,526.16
  6. Step 6: Final answer
    x = 192,295.64

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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.