Finding the Fourth Proportional to 70,968,921.84, 97,938,387.63 and 41,621,421.42
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Solution
The fourth proportional to 70,968,921.84, 97,938,387.63 and 41,621,421.42 is: 57,438,309.60
Step by Step Solution
- Step 1: Write the proportion equation
70,968,921.84 : 97,938,387.63 = 41,621,421.42 : x - Step 2: Convert to fraction form
70,968,921.84/97,938,387.63 = 41,621,421.42/x - Step 3: Cross multiply
70,968,921.84x = 97,938,387.63 × 41,621,421.42 - Step 4: Simplify right side
70,968,921.84x = 4,076,334,904,743,545 - Step 5: Solve for x
x = 4,076,334,904,743,545/70,968,921.84 - Step 6: Final answer
x = 57,438,309.60
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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.